Lot 397. Lefty Grove Boldly Signed Gold Plaque HoF Postcard Authenticated by PSA-DNA. Slabbed by PSA-DNA, the card has a gem mint 10 autograph that is authenticated also by Kevin Keating. Grove has the highest winning percentage among winners of 300 games, and the seventh best percentage among pitchers who appeared in at least 1,000 innings. Analyst Bill James has called him “the greatest pitcher of all time, period.” From 1927-33, he won at least 20 games, including 31 in 1931. He posted the best ERA in the A.L. nine times in 17 seasons. He had three .500 season and lost more games than he won only in his inaugural year. Grove entered the Hall of Fame in 1947 and passed away in 1975. Authenticated by Kevin Keating.
Winning Bid $92.